It has been shown that even though low and medium strength compression socks didn't improve speed of running, but they helped the athletes maintain leg power after running. (compressioncarl.com)
However, instead of focusing on leg power, like the previous exercises did, the streamline crunch puts an emphasis on core strength. (blog.bridgeathletic.com)
In some cases, you should use mats in order to increase the stability of equipment or fixed legs power tower to the floor. (best-powertower.com)